有机硅氧烷改性水性丙烯酸树脂的制备及性能研究  

Study on preparation and properties of water-borne acrylic coatings modified by organic silicone

作　　者：王晶丽 来水利[1] 于金凤[1] 周凯祥 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2016年第2期97-101,共5页Journal of Shaanxi University of Science & Technology

基　　金：陕西省科技厅科技攻关计划项目(2015SF266);陕西省教育厅重点实验室科研计划项目(12JS016);咸阳市科技计划项目(2012k05-02);榆林市科技计划项目(2011)

摘　　要：以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)、丙烯酸(AA)、丙烯酸羟乙酯(HEA)、叔碳酸缩水甘油脂(E-10p)和乙烯基三乙氧基硅烷(AC-75)为原料,采用溶液聚合法制备出有机硅改性水性丙烯酸树脂,考察了引发剂用量、有机硅加入方式及用量、中和度对树脂性能的影响。通过傅里叶变换红外光谱仪(FT-IR)、透射电镜(TEM)、纳米粒度表面电位分析仪以及热重仪(TGA)分别对聚合物的结构、粒子形貌及粒径、热稳定性等进行了表征和分析,检测了合成树脂的漆膜性能.结果表明:当引发剂BPO为2.5%(单体总质量),有机硅为6%,中和度为100%时,合成了固含量32%、粘度4.5Pa·s、附着力1级、柔顺性2mm、耐水性及耐热性好的有机硅改性水性丙烯酸树脂.The water-borne acrylic resin modified by silicone was prepared by solution polymerization using methyl methyl-methacrylate（MMA）,butyl-acrylate（BA）,acrylic-acid（AA）and hydroxyethyl-acrylate（HEA）,glycidyl Versatate（E-10p）and vinyl triethoxy silane（AC-75）as raw material.The effects of the dosage of initiator,organic silicon amount and join,neutralization degree on the properties of the resin were investigated.The resin structure,particle size,particle morphology and thermal stability were characterized and analyzed by FT-IR,TEM,nano particle surface potential analyzer and TGA,in addition to test its performance of synthetic resin.Results showed that when the dosage of initiator is 2.5%,organic silicon dosage is 6%,neutralization degree is 100%,silicone modified water-borne acrylic resin was obtained with solid content 32%,viscosity 4.5Pa·s,adhesion1 degree,flexibility 2mm,good water resistance and heat resistant.

关 键 词：有机硅 水性丙烯酸树脂 溶液聚合 耐水性 

分 类 号：TQ630.43[化学工程—精细化工]